These days kids get paid enough that they probably don't need to work too much. The problem is when the person is old enough that they need to work to make a living, and the only thing that they know how to do is what they are already washed up in.
I was always an Olsen. I never thought of myself as a Brady. I never actually wanted to be a Brady. I always preferred my own family to the Bradys.
If you were a kid actor, if you had any plans of being an actor as an adult, you were really barking up the wrong tree.